Microsoft 365 Consulting for Wisconsin Businesses
Most companies start looking for a Microsoft 365 consultant because something visible is wrong. Licensing nobody can account for. Files that are impossible to find. Permissions no one can explain. Multi-factor authentication that applies to some accounts and not others. External sharing with no record of who approved it. Administrative access spread across people who left.
Those are symptoms. The deeper problem is usually that nobody owns the tenant continuously. A consultant who changes the configuration and leaves has not solved that. The environment starts drifting again the week after the invoice clears.
Who owns your Microsoft 365 tenant?
A project consultant can configure Conditional Access. They can correct SharePoint permissions. They can reconcile licensing. They can send an invoice. Then they leave.
Months later, in the same tenant:
- Someone creates an account that falls outside the intended authentication policy.
- A policy exclusion added during a rollout is still in place.
- An external sharing link is never reviewed.
- A privileged account stays active longer than it needed to be.
- A new application is granted access to Microsoft 365 data.
Nobody reviews any of it, because monitoring and governance were never part of the project. The tenant is not misconfigured through negligence. It drifts because change is continuous and ownership was not.
The configuration was not the real deliverable. Ongoing ownership was.
Microsoft 365 cannot be secured in isolation
Identity, endpoint security, network security, email security, and backup and recovery have to operate under coordinated ownership. They share the same attacker, the same accounts, and the same data.
Hardening Microsoft 365 while endpoints, firewall policy, identity, email protection, and backup are unmanaged, or split across unrelated vendors, creates gaps in responsibility. A compromised laptop produces a valid Microsoft 365 session. A firewall rule nobody owns exposes a service that leads back to the same identities. A backup nobody has restored from is not a recovery plan for Microsoft 365 data. Each vendor can be individually correct while the environment as a whole has no owner.
That is why we manage Microsoft 365 as a component of a complete managed technology stack rather than as an isolated product.
What we find in Wisconsin tenants
Authentication exceptions and stale application access
Old enterprise applications, broad consent grants, service accounts, and policy exclusions remain in place long after the business reason for them disappeared.
No Conditional Access baseline
Microsoft 365 may include MFA-capable licensing, but enforcement is inconsistent, exclusions accumulate, or important sign-in conditions are not governed through policy.
Standing global administrator access
Permanent high-privilege accounts remain active without an intentional privileged-access process, administrative separation, or periodic access review.
Retention and eDiscovery controls never configured
Deleted content can age out or become unavailable for long-term recovery or legal preservation because retention requirements were never deliberately defined.
No defined Microsoft 365 backup strategy
Microsoft 365 licensing is not the same as having a documented backup and recovery strategy with appropriate retention, independent protection where required, and tested restores.
Unreviewed guest and external sharing
Guest accounts, old sharing relationships, broad external access, and anonymous or organization-wide links can remain active long after their original purpose ended.
Purview licensed and largely unused
The organization may already license Microsoft data-governance and compliance capabilities but never configure the controls needed for retention, information protection, audit, or data handling.
Unmanaged device access
Personal or unmanaged systems can access or synchronize company information without an intentional device-compliance, application-protection, or access-control strategy.
Compliance-grade Microsoft 365
For Wisconsin manufacturers, defense suppliers, and other regulated organizations, Microsoft 365 is where most of the regulated data actually lives. CMMC, NIST SP 800-171, DFARS clauses, and ITAR obligations all land on the same tenant, and they land on configuration and operational practice rather than on a purchase.
Commercial, GCC, and GCC High are different environments
Microsoft commercial, GCC, and GCC High are separate cloud environments, not levels of the same one. They differ in eligibility, service availability, feature parity, compliance commitments, data-location considerations, and day-to-day operational implications. Choosing the wrong Microsoft cloud environment early can force a costly and disruptive migration later, so environment selection should be assessed before configuration work begins.
Handling Controlled Unclassified Information
If you hold CUI, the practical questions are specific. Where does it live in SharePoint, and who can reach it. What happens when it is shared through Teams with a supplier or a prime. How identity and access requirements are enforced for the people who touch it. How external sharing is constrained. Which devices are allowed to access or synchronize it. How the data is protected in transit and at rest. Who holds administrative control, and how that control is reviewed.
Mapping NIST SP 800-171 controls to reality
Technical requirements have to be mapped to the configuration and operational controls that actually implement them, with evidence. A licensed capability that was never configured satisfies nothing. Microsoft 365 does not create CMMC or NIST compliance on its own, and we do not certify compliance. We implement, document, and continuously operate the controls in scope for us, and we tell you plainly which requirements sit outside the technology. Our NIST 800-171 and CMMC work starts from that mapping.
ITAR-controlled technical data
ITAR-controlled data introduces requirements involving data location, access, contractual commitments, and the personnel permitted to access controlled technical information. Those requirements shape the environment decision, the identity model, and the sharing controls, and they need to be established with your counsel and your contracts rather than assumed from a product datasheet.
How we engage
Collett Systems does not sell standalone Microsoft 365 consulting projects. Microsoft 365 is included as part of one fully managed technology and security stack, priced at a flat per-user monthly rate under a standard 36-month managed-services agreement. Every new managed-services relationship begins with a paid, fixed-fee IT and Security Assessment.
If you are looking for a one-time Microsoft 365 cleanup with no ongoing ownership, we are not the right firm, and we will tell you that early rather than after a proposal.
Microsoft 365 consulting by location
Microsoft 365 consulting questions
Will you do a one-time Microsoft 365 cleanup for us?
No. We manage Microsoft 365 as one component of a complete technology and security environment, under continuous ownership. A one-time configuration change with nobody accountable afterward recreates the problem that caused you to call.
How does a Microsoft 365 engagement with Collett Systems begin?
Every new managed-services relationship begins with a paid, fixed-fee IT and Security Assessment. It produces documented findings across identity, Microsoft 365, endpoints, network, email security, and backup, along with a roadmap and the work required to bring the environment under management.
Do you manage tenants you did not build?
Yes, and that is most of what we take on. Onboarding includes reviewing the existing tenant's identity, security, sharing, retention, and device configuration and remediating what does not meet the baseline we operate.
Can Microsoft 365 make us CMMC or NIST 800-171 compliant?
No product creates compliance. CMMC and NIST SP 800-171 require specific controls mapped to actual configuration, documented practice, and evidence that the controls operate. Microsoft 365 can implement many of those technical controls when it is deliberately configured and continuously governed.
Which Microsoft cloud environment should a defense supplier use?
That depends on your contractual obligations, the data you handle, eligibility, and which services you require. Commercial, GCC, and GCC High are different cloud environments with different service availability and commitments. The decision belongs before configuration work, because changing it later means a migration.
Is Microsoft 365 sold separately from managed services?
It is not. Microsoft 365 is part of one fully managed technology and security stack at a flat per-user monthly rate, under a standard 36-month managed-services agreement.
Start with the IT and Security Assessment
The IT and Security Assessment is a paid, fixed-fee engagement and the starting point for a potential managed-services relationship. It reviews identity, Microsoft 365, endpoints, network, email security, and backup, then delivers documented findings and a roadmap you keep either way.
Request an IT and Security Assessment